BUF (Buffalo) to BOS (Boston) flights arrive on time 79% of the time. The most reliable airline on this route is Delta Air Lines at 89%. The average delay is 77 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated October 2026.BUF → BOS
BUF (Buffalo) to BOS (Boston)
BUF → BOS on-time performance by month
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This route is on time most of the time. About 79% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Delta Air Lines is significantly more reliable on this route at 89% on time vs null at 69%.
Airline Comparison
Delta Air Lines leads at 89% on time; trails at 69%.
Accurate?
Good to know
Departing from BUF
78% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. BUF has long runway queues.
TSA is currently ~18 min. Best time: 4 AM (about 5 min).
BUF cancels 2.3% of flights — higher than average. Have a backup plan.
Arriving at BOS
77% on timeWhen flights into BOS are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at BOS: TSA is ~33 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Delta Air Lines owes you — refund rights, action plan, complaint email. Free.
Flying out of BUF? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated October 2026. Source: Bureau of Transportation Statistics.